How to Build a 18650 Lithium Ion Battery Pack with BMS - DIY - Time Lapse

How to build a 18650 Lithium-Ion battery pack for motorcycle.
WARNING
The video is for professionals only! Electrical work without proper knowledge or certification, especially with Lithium-Ion Batteries, is extremely dangerous and can lead to serious injuries, burns, blindness, and even DEATH! The use of this video is on the user's responsibility!
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[@paps69shed]

CCA must be low on those BMS boards? the larger 100amp boards share the positive between the battery and charger but use sperate neutral connections. Not a problem if your charging your battery from a wall plug in but if its connected to the neutral in a bike I can see this been a problem? I'm sure those little 40amp boards get round the neutral problem but they only provide 40 amps, no where near enough to crank a bike startermotor?

[@MyINNOVAMotorcycling]

Good questions. The subject is complex, and those who do not know that subject shuold not deal with it. The lithium-ion battery I built holds up very nicely. In lithium-ion terms, my battery is still young. In the last two years the subject has developed nicely, and today special lithium-ion batteries for motorcycles are available in stores.

[@paps69shed]

@@MyINNOVAMotorcycling thanks for the reply. I do like what you have done and the professionalism of your presentation. I am wanting to do this for a small boat outboard, the cranking amps should be low-ish! similar to a scooter or small motorbike. If your battery is holding up well on your bike with that 40amp bMS then I'm sure it could work for me. Thank you

[@paps69shed]

@@MyINNOVAMotorcycling Hi, just a call back in to see how are you getting on with this pack? is it all still working and how dose the BMS handle the input voltage from the alternator. I think the bms is good for around 13v input but the alternator can put 14+ out. has this caused any issues. Thank you

[@MyINNOVAMotorcycling]

@@paps69shed A few months ago I was back to the (original) Yuasa lead battery. A lithium-ion battery is nice, but if you are not a racing rider who pursues to save one Kg of weight it is not really a worthy replacement for the lead battery. The original lead battery lasts for years, the lithium ion battery hold about a year? Lithium ion has another major disadvantage, when the voltage drops (at the end of life), the protection circuit shuts off the battery at minimum voltage with almost no advance warning. In lead batteries you feel when a battery is going to run out, in lithium ion it is cut-off at once. In the case of the Honda Innova this is not a problem because it has the kick starter and all systems can work even without the battery. I was very enjoy the project, researching, and learn, but at the end of the day I found no practical benefits for lithium-ion battery.

[@paps69shed]

@@MyINNOVAMotorcycling that's a very interesting insight. I'm think 12.6 but 11.1 is nominal so maybe maxed for 3s li-ion, I guess it wont take much to finish them off like that and are slightly low to begin with in cars/bike? Like you said in your comments lifepo4 is better but still a very good project that I'm sure many of us have learned from your example. Nice work! 👍

[@theprepperfrog167]

Really great video/tutorial! Never pause a video so often! Thank you very much sir.

[@MyINNOVAMotorcycling]

My friend thank you very much. My fun, my style, is video clips (and time-lapse). As you mentioned, anyone who wants to focus on the details slows the video down to 0.25 (found on the KZbin toolbar), or stops the video as you paused. My subscribers love the knowledge when it is served in a short time, on the other hand very detailed, and also appreciate the art work of editing a music clip for physical mechanics. You are also welcome to subscribe, thank you very much

[@avpr1c]

2:07 is the magic 😁

[@belajardanberbagiapapunitu4246]

I really like the lithium or lifepo4 battery and your project, because the motorcycle battery voltage must be 12v to supply the existing electricity every components in the motorcycle,but what is the risk if you use a bms 3s and bms 4s module if the voltage on the motorcycle fills the normal 14.8v current and what if the problematic motorcycle regulator can reach 16v-18v.

[@MyINNOVAMotorcycling]

Thank you for the compliments. You are of course absolutely right. Note that the charging voltage is 15.5V MAX, and the MAX voltage of four Liefpo4 batteries is as you mentioned 4x3.7 = 14.8V, so with the suitable BMS card there should not be a problem. Of course there is more data to check and take into account, and I did not mention them all. Incorrect connection may lead to damage. I share information, the decisions everyone makes are on their own responsibility. Ask and check in more information sources. This is a topic that needs to be studied in depth.

[@nessimbtesh4661]

Amazing Editing Skills. It made learning so much easier. Would like to see the end

[@kenjlee]

Great tutorial. Is there a reason u chose to use hot glue to insulate instead of epoxy? If somewhere goes wrong a spark can quickly melt away the insulation and cause problem, or possibly fire.

[@MyINNOVAMotorcycling]

Those who do not have knowledge or ability on the subject, or those who are afraid, are asked not to try. Without responding to your claim, I say that there are many dangers in the process of building that battery, only some of them I demonstrated in the video. I do not recommend anything, I just share, the video is for viewing only! Everyone who uses the video takes full responsibility for his actions.

[@ilangovanNTK]

Very nice explain

[@MyINNOVAMotorcycling]

Thank you very much

[@abbasmeraean3643]

So nice

[@kikstand2011]

If I had a lithium ion pack made from 18650, that is 12.6v @ 40ah.. Would it be suitable to run a trolling motor for a kayak that has max 20a draw?

[@iJacker]

You need 50a unless it’s a small motor. Did you ever make one?

[@kikstand2011]

@@iJacker my motor is small. It's a haswing 20. And no. I didn't make one. I just bought two 20ah agm and they plus my motor are only 30lbs. So ive been rolling with that.

[@rinepvlog3981]

Hindi po ba masisira ang bms kahit hindi naka battery drive ang motor o ang ilaw?

[@MyINNOVAMotorcycling]

This is the situation in the Honda Innova, the lighting is fed in alternating current(AC). The Alternating-Current(AC) coming from the alternator to the regulator, and therefore limited to 15.5V AC at maximum. There is also a rectifier that give a Direct-Current(DC), which supplies DC voltage to other systems including to charging the battery. I am back to a standard lead battery, and I do not recommend lithium batteries.

[@fotisdog3612]

Nice video good job...

[@soufyanedz9688]

Can i use this battery for my car alternator give 14v 5a can bms handle the chatging current

[@MyINNOVAMotorcycling]

In principle yes, there should be no problem, depending on the specification of the BMS card you are using. My experience with the lithium-ion battery was interesting. Beyond the do-it-yourself hobby games I recommend the original lead battery: YTZ7S www.amazon.com/-/he/dp/B002OQASG4/ref=sr_1_11?dchild=1&keywords=ytz7s&qid=1602545409&sr=8-11

[@dan2937]

hi there i have a question i am using 12v 8ah battery on my adv motorcyle which is orignal , i want to add 2 additional pairs of some auxiliary lights, i am worried what battery should i make in order to not blow up my electronics or battery pn long run, thanks in advance, this video was really helpful

[@MyINNOVAMotorcycling]

I enjoyed working on a lithium-ion battery project, but it didn’t make much of a contribution beyond that. I went back to the original lead battery. It is not recommended to add an electrical components without updates to the system to support the extra components. I am not a car electrician, and do not know how to recommend to you what you should upgrade in your electrical system for adding electrical components.

[@chromiumCR24]

lol interesting video edit 👍

[@brianalbers2260]

Do you have any issues with the factory charging system from the engine charging and maintaining the battery? Were there any modifications you had to make to the factory battery charging system?

[@MyINNOVAMotorcycling]

No, the charging system is the same charging system, which provides a maximum of 15.5 volts. A battery management card PCB BMS is responsible for everything else. kzbin.info/www/bejne/o3SUpZ1sl82qmrs

[@karnashanmugam9789]

Sir i have branded 18650's but capacity of all cells are different, so im planning of adding 2000mah×15=30000mah for one parallel, 2500mah×12=30000mah for other parallel, 3000mah×10=30000mah for another parallel, im thinking it will be safe because ah rating of all parallel will be same,,, is it ok

[@MyINNOVAMotorcycling]

If you ask it is a sign that you do not know the sabject and it is very worrying, especially if you are going to make so powerful battery that can cause so much damage. As a principle, the structure you suggest is not recommended. Passing the same current through a different number of batteries creates differences in load and temperature. The parallel structure with fewer batteries will heat up faster. And there are other differences. So is what you are offering possible? Yes. Is it recommended? Definately NOT!!! There are so many things to know about lithium-ion battery production, if you don't have the knowledge, please don't mess with it. Please leave the pack battery building to professionals.

[@karnashanmugam9789]

@@MyINNOVAMotorcycling thank u for the kind reply, i ordered a battery discharger and tested all cells which are giving me readings from 2100mah to 2600mah, so im planning of building a 20ah pack by arranging the cells in such a way that each parallel will contain same number of cells and total amps will also be balanced, almost all the cells are 2c rated but im going to consider 1c for safer side and also going to match cells which are nearby equal in internal resistance also,, my bike is 48v and 500watt hub motor so im guessing 20ah per parallel with 2c rated cells considered as 1c rated will be sufficient to power my motor safely,, your valuable suggestions are required for me sir

[@karnashanmugam9789]

Sir can i mix 1c and 2c rated cells in parallel considering the 2c cells as 1c, they vary 100 to 200mah from a cell to other and internal resistance is 15 to 20 milliohms difference, all the cells are in range of 120 to 140 milliohms internal resistance

[@joesam8113]

Hi can i use Thermal Fuse RF series TF 192 degree celsius 250v 10 A, i am plaining to do as the same you did for my motorbike current Batt (YTZ7S)12v 6AH 10HR..Thank you

[@MyINNOVAMotorcycling]

C for current, T for temperature. I used fused for temperature(TF 72 degree celsius), and it is of course limited to current (That's why I used two of them). The subject is complex, and I do not intend to advise you or encourage electrical work done without proper knowledge and certification. The hobby is for fun, and you need to be very careful about a subject that could be a big danger for you.

[@joesam8113]

@@MyINNOVAMotorcycling in this case can i oder TF 72 from you is this possible .

[@MyINNOVAMotorcycling]

@@joesam8113 No, my sharing is limited to the videos I upload here. If I remember correctly the components are inexpensive and are sold in web stores. Try to find the deal that suits you best.

[@belajardanberbagiapapunitu4246]

whether the motorcycle current regulator 14.5v to 16v can overcome using 3s bms, please explain sir.

[@MyINNOVAMotorcycling]

You are absolutely right. It is not possible to explain everything that requires explanation in a short response, nor does the video purport to be the one that explains everything. I understand by your question that you know the subject better than me. Yet, i woud try to answer you like this: A BMS card is a Board Management System. The electronic board has over voltage protection, and over charging protection. You must to look at the specification of your card and there you will find all the data. Today I would build a structure configuration of 4S with Lifepo4 batteries. The S4 configuration have more high quality BMS, and the batteries Lifepo4 are more stable and less dangerous. I sharring the information, the decisions you make are on your own risk. thank you very much.

[@belajardanberbagiapapunitu4246]

thanks sir.

[@belajardanberbagiapapunitu4246]

if you use bms 4s the results are 16.8v full battery voltage and low voltage of 14.8v, while motorcycle batteries use 12v and full voltage 12.8v even though the motorcycle regulator supplies 14.5v but still the normal voltage point returns to 12v, is it good if using bms 4s = 16.8v, sorry I'm a beginner just learning and understanding the level of risk. thanks in advance.

[@MyINNOVAMotorcycling]

A typical 12-volt lead-acid battery full charge is approximately 14.5.-15.5 VDC that is the Charging voltage After charging is finished, after a hour or more the battery drops to about 12.8 volts lifepo4 singl cell max volt is 3.7 3.7x4=14.8 Therefore, with a BMS card that corresponding to this data(S4), there should be no problem. Maybe I'm not accurate either, just note the possibility of a Lifepo4 battery pack

[@belajardanberbagiapapunitu4246]

thank you sir

[@MrDavidNg1]

Hi I am a racing enthusiasm, i am thinking to reduce my bike weight by changing lead to lithium battery and I am thinking the smallest size possible. Can I drop from 120 CCA 8Ah to 120 CCA 2Ah? As far as I know, 2Ah which means battery volume is much lesser but would it be sufficient to crank start my bike 3-5 times in a short period of time? My starter drawing power about 100A.

[@MyINNOVAMotorcycling]

To the best of my knowledge racing motorcycles do not have an electric starter at all, and it is also possible to reduce weight by taking out the all kick starter mechanism . If it is worth it? If it's good? depends to whom? It will reducing weight for sure. I do not know how much the load on the coils increases, and how much they can hold, I know that the motorcycle engine can working even without a battery at all (Only on the generator). kzbin.info/www/bejne/mmqzlHeMec91gZo On the racetrack you also do not need the lighting system ... Just please, I share the information, the decisions you take are on your responsibility. 2Ah battery is NOT sufficient to crank starting!

[@motto666]

This has about 15 amperes, do you think this can jump start a 1000cc Fazer bike that require 180CCA to start? I will use it for emergency only. How long did this last on your bike, and what bike how many cc?

[@MyINNOVAMotorcycling]

I used low quality and cheap batteries, and it did not last more than a few months. It was an interesting experience. I do not like Lithium-ion batteries for motorcycle because when they run out there is no sign of it. It happens suddenly. I built the battery for my Honda Innova125i scooter. I went back to the Yuasa O.E.M battery.

[@motto666]

@@MyINNOVAMotorcycling Thanks for sharing. I see a new trend coming up, more and more people are using Lifepo4 for bikes, I guess Lifepo4 should be better than lithium right? It is suppose to last 5 to 10 years. But maybe should wait a few years, we will know whether it is reliable or not, especially the BMS, how long it will last.

[@MyINNOVAMotorcycling]

@@motto666 Yes, LiFePo4 are safer and last much longer, but today a quality cell of this type is still very expensive. The control over them must be according to a more accurate voltage drop. If you have an accurate voltmeter in the instrument panel and you are monitoring the situation then you may not be surprised. Lead battery does not run out suddenly. Perhaps in the near future a manufacturer who installs LiFePo4 battery will also arrange a control light that will give a sufficiently long warning to replace the battery On the other hand, if you buy a high-quality LiFePo4 battery from a quality manufacturer that promises, lets say, 8 years, you can replace it after 7 years, then there are no surprises. As of today, they continue to produce a lead battery, and we are also starting to see a LiFePo4 battery. I think it's worth to wait ... when the motorcycle is full electric then it's clear that no special battery is needed for starting. The technologies in my opinion have not ready yet and we not knowing what will be in the future. (Electric motorcycle apart from the generously available torque, it has only drawbacks)

[@blakedelacruz8456]

Great edit! How much can I buy one for!!

[@MyINNOVAMotorcycling]

Thanks! The technology is develop rapidly, I do not know exactly, but buying a dedicated lithium-ion battery for a motorcycle is no longer such an expensive product, and it is available in stores that selling non-genuine parts (After market parts).

[@JLMtime]

everytime i start to work on doing this im worried the alternator will blow up the batterys

[@MyINNOVAMotorcycling]

Your concern is justified, in the sense that improper and unprofessional handling of lithium-ion batteries, especially in self-production, can lead to dire consequences.

[@alpan785]

@Grigoris Zagas example of a good bms and not cheap chinese??? Link?

[@ib9459]

How many 18650 batteries should i use for a GSX-R750 motorcycle? Thanks!

[@MyINNOVAMotorcycling]

Today I recommend on: LiFePO4 Battery cell with Protect. This battery is considered more stable and more safer. Their nominal voltage is: 3.2V. Maximum voltage is: 3.65V. (32700 Size: 32 * 70mm). The battery pack voltage and its current are built by a single battery matrix in parallel and serial arrangement(P&S). If you have no knowledge of electricity, you are advised not try to build yourself such a battery pack, it could end in disaster.

[@ib9459]

@@MyINNOVAMotorcycling I have already build a 4S4P 18650 from old laptop batteries... the amps i am gettign are aproximately 10-11 with 16.8V. But its not enough to start/crank . I have 6 supercapacitors i am thinking to add to the batteries and just might do the trick?

[@MyINNOVAMotorcycling]

My dear friend, a 10 amp lithium-ion battery pack was supposed to start your GSXR750 motorcycle engine without any difficulty. Lithium-ion batteries excel at providing higher than nominal Amps. For example 6C it means you can discharge 10AX6=60A amps. You probably don't get the Amps you think you get. I think something is wrong with your battery pack, and it could be very Dangerous!!! 16.8V ????!!!!??? REF1 = Yuasa YT12A-BS: www.yuasa.co.uk/batteries/yt12a-bs.html ***YT12A-BS HAVE: CCA 175A, 12V*** REF2- C Rating: kzbin.info/www/bejne/o3SUpZ1sl82qmrs

[@ib9459]

@@MyINNOVAMotorcycling I used 16x18650 in parallel . The 18650 are from laptop batteries and give me around 18 amps. I have used as a guide this instructable www.instructables.com/id/Make-an-inexpensive-Lithium-Ion-Battery-Pack/ Thanks for your answer. Yes i did check the lead acid battery it does provide 10AH so maybe my 18650 do not provide the neccesary *burst* of amp. The regulator/rectifier of my gsxr produces 13.8-14.2v

[@MyINNOVAMotorcycling]

Note the numbers I listed above: 175CCA > 60A-C-Rating

[@ladanleghae8938]

tanx

[@DUCATIstreetfighterINTurkey]

hi bro, thanks for video. İ have ducati with yt12b bs which include 12v 10 a yuasa, so i have to use 3s10p , 30x liion battery? 3s100a ? i dont know please can you help me? thanks...

[@MyINNOVAMotorcycling]

I would love to share, whether it helps or not I don't know, the fun on KZbin is sharing, both for entertainment and information, and everyone takes what suits them. My attempt with a lithium-ion battery failed, the project was interesting and challenging, I was happy to do it, and in the end I returned to the Yuasa battery. Today, lithium batteries are available for purchase on all size, but in my opinion, apart from the difference in weight, lithium battery has no advantage. Regarding the S calculation of the batteries, calculate according to the voltage of a single charged battery, and multiply by the amount of batteries. Let's say: 4.1V for lithium ion, so you need to connect three batteries at S to get 12. Regarding the calculation of P of the battery, let's say: 10Ah for a single battery, then you need to connect 10 batteries at P to get 100Ah. SO YES 3S10P I wouldn't use lithium-ion again, I'm not up to date, last time I checked the safer battery was the LiFePO4 type at 3.6 volts Max per unit? 4S for 14.4V/ ~14.4 - ~15V that is the voltage you see on the battery terminals when the engine is running, because it is the charging voltage produced by the alternator (plus or minus). You need to check what is available on the market.

[@MyINNOVAMotorcycling]

PS check if the charging system is working good: At idle rpm there should be a voltage of 13.9 volts plus or minus on the battery terminals. A Yuasa battery can last for years, but if the charging circuit is not functioning it will destroy it. It is a shame to install a new battery with the charging circuit not functioning, because it will also destroy the new battery too.

[@DUCATIstreetfighterINTurkey]

@@MyINNOVAMotorcycling thank for your answers, when i rev it 5000 rpm the voltage is being 14.2, and i have 4.2v 2800mah lions, so i think to connect 3s 4p, so will be 12.6v 11.2aH , and i am thinking back charging 14.2 will bad affet on bms or not? What you think? Thanks for your reply bro...

[@DUCATIstreetfighterINTurkey]

And want to use 3s 40a bms

[@MyINNOVAMotorcycling]

@@DUCATIstreetfighterINTurkey The test regarding to the charging system also includes a test at idle rpm, how many DC volts do you measure on the battery terminals at idle rpm? 14.2VDC at 5000 rpm is OK. The electronic card (BMS)that controls the charging of the battery lowers the voltage to the maximum allowed area (4.2V x 3 = 12.6V). With lithium ion batteries there is no need for 4S connection, only 3S. I recommend LiFePO4, they are much safer, and with them I know that a 4S connection is made.

[@ronaldharris6569]

Who is still soldering cell anymore?

[@MyINNOVAMotorcycling]

I am, but You're right. Spot welding requires me to buy a new device, or produce it my self, and I didn't want to. Spot welding is the preferable way for batteries welding.

[@ronaldharris6569]

@@MyINNOVAMotorcycling yup it's a better way to do it there are several diy battery powered spot welders you have definitely proven you have the skills to fabricate one,what got my attention was the care you put in matching and balancing new cells that's not much of an issue but using used cells that big time important

[@burnzy56469]

Very professional video thank you

[@grndragon2443]

Li-ion or lifepo4?

[@MyINNOVAMotorcycling]

I used lithium-ion batteries. Lifepo4 batteries are more stable, less dangerous, but they have other dimensions, the voltage data is also different. Today I recommend on lifepo4, OR the original battery YUASA YTZ7S dry lead battery.

[@x-adv7503]

不错的创意。貌似配件都来自中国的淘宝。体验到什么叫实惠了。

[@MyINNOVAMotorcycling]

非常感謝你

[@Bergwacht]

But 12,6V Full is not enough... I use a charger with a car cigarette lighter connector. it sucks 8 amps. If I get below 12.6V, the device switches off automatically because it no longer gets enough power. If this battery has 12.6V in a full state, my consumer doesn't even run.

[@pinokiyo8952]

saya buat bms tpi sya kasih beban besar error kak...

[@MyINNOVAMotorcycling]

ฉันไม่เข้าใจสิ่งที่คุณเขียน

[@2404Pepe]

Didn't understand a thing, sorry

[@MyINNOVAMotorcycling]

This is a video clip. If you are interested in the details, I recommend you give up the soundtrack and choose at the KZbin toolbar speed viewing of 0.25. I also recommended for you to watch a standard PC screen and not at the mobile phone's small screen. thank you very much.